Flora of North America species comparison

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Vauquelinia californica subsp. californica
Photo is of parent taxon

Arizona rosewood
Young stems

initially tomentulose, becoming canescent or tardily glabrate.
Leaves

petiole (4–)7–15(–26) mm;

blade bicolor, abaxially white, adaxially green and lustrous, lanceolate to oblong-lanceolate or narrowly elliptic, (3.5–)4–9(–15) × (0.7–)1–2(–3.2) cm, surfaces initially villous-tomentulose, abaxially usually sparsely white-puberulent, hairs slightly coiled, sometimes glabrate or glabrous, adaxially mostly glabrate or glabrous.
Flowers

hypanthium 2–2.5(–3) × 2–3.7(–4.5) mm, exterior tomentulose or tardily glabrate, interior glabrous;

sepals 1.4–2.1 × 1.5–2.3 mm, puberulent-villous;

petals 4–5 × 2.5–3.5 mm;

filaments 3–5.5 mm.
Capsules

5–6.5 × 3.5–4.5 mm.
Seeds

4–5 × 1.2–1.3 mm.
Corymbs

3–5(–12) × 3–8(–13) cm.
2n

= 30.

Vauquelinia californica subsp. californica
Phenology Flowering spring.
Habitat Limestone and granite substrates, shrublands of upper Sonoran Desert from above desert plains to lower pinyon-juniper zones
Elevation 700–1800 m (2300–5900 ft)
Distribution
from FNA
AZ; Mexico (Baja California, Baja California Sur)
[BONAP county map]
Discussion

Subspecies californica shows considerable variation among populations, particularly with regard to vestiture, leaf size and shape, petiole length, and number of marginal teeth. Often populations within the same mountain ranges in Arizona share the same pattern of variation. Most of the populations have distinctly bicolor leaves, at least when young, or abaxially become weakly puberulent and persistently, closely tomentulose to canescent with tightly coiled hairs.

The name Vauquelinia torreyi S. Watson, which is illegitimate, pertains here.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 9, p. 430.
Parent taxa Rosaceae > subfam. Amygdaloideae > tribe Maleae > Vauquelinia > Vauquelinia californica
Sibling taxa
V. californica subsp. pauciflora, V. californica subsp. sonorensis
Name authority unknown
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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